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Transparent TCP recovery
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The TCPR home page, <http://www.cs.cornell.edu/~burgess/tcpr/>, provides information about the people involved in the project, the code development repository, and TCPR's design and ongoing research. This document aims to guide someone new to the project from first cloning the code repository through conducting a live demonstration and developing new applications. TCPR uses the GNU autotools build system and links with the xtables library. On an Ubuntu system, the `autoconf', `libtool', and `iptables-dev' packages provide the necessary dependencies. # apt-get install autoconf libtool iptables-dev The repository does not contain any autotools generated files, so once, right after cloning, you must set up some infrastructure. $ autoreconf -i Then, you can build the userspace programs and iptables extension library. $ mkdir ../tcpr-build $ cd ../tcpr-build $ ../tcpr/configure $ make # make install The kernel module must be built separately, using the kernel build system. I usually find it is necessary to run depmod manually. $ cd module $ make # make install # depmod You can check whether the kernel module is successfully built from the output of `modinfo tcpr'. The scripts in the `examples' directory provide a simple demonstration of TCPR. Start with `examples/recovery', which demonstrates simple failure and recovery. First, inspect the scripts to get a feel for what is about to happen, then open up two terminals. # ./setup-network # ./setup-tcpr # ./peer # ./application ... type back and forth ... ^C # ./recover ... more typing ... ^D ^D # ./teardown-tcpr # ./teardown-network
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